.
—Why are you looking so worried?
—I sent an email to my son in America last week, but no reply ________.
| A．was received | B．had received | C．has received | D．has been received |
He didn’t make good preparations for the English speech competition and had to _____ at the last moment.
| A．back out | B．turn off | C．carry on | D．pull down |
. She _____ on this essay for twenty minutes but she has written only about a hundred words.
| A．will be working | B．worked | C．has been working | D．will have worked |
A cartoon series on Confucius was aired on TV, _____ the thinker was a 10-year-old boy, not an old man.
| A．from which | B．in which | C．from it | D．in it |
27. The famous star _____ in the gym several hours every day to keep fit.
| A．takes up | B．turns out | C．gives away | D．works out |
—Can Li Hua help me with my English?
—I regret to tell you that her English is _____ yours. Why not ask others for help?
| A．as good as | B．no more than | C．no better than | D．as much as |